CN109580140A - A kind of ring rigidity testing machine and its test method - Google Patents
A kind of ring rigidity testing machine and its test method Download PDFInfo
- Publication number
- CN109580140A CN109580140A CN201811583705.5A CN201811583705A CN109580140A CN 109580140 A CN109580140 A CN 109580140A CN 201811583705 A CN201811583705 A CN 201811583705A CN 109580140 A CN109580140 A CN 109580140A
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- pressing plate
- pipe fitting
- pedestal
- rack
- indicator
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M5/00—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings
- G01M5/0041—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings by determining deflection or stress
- G01M5/005—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings by determining deflection or stress by means of external apparatus, e.g. test benches or portable test systems
- G01M5/0058—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings by determining deflection or stress by means of external apparatus, e.g. test benches or portable test systems of elongated objects, e.g. pipes, masts, towers or railways
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a kind of ring rigidity testing machine and its test methods, including host computer and rack, pedestal is provided in rack, it is slid vertically in rack and is connected with pressing plate, the driving mechanism for driving pressing plate to go up and down is provided in rack, vertical pivot is provided in rack, the locking piece for being provided on indicator and indicator and limiting its sliding is slidably connected on vertical pivot, convex block is convexly equipped at the top of locking piece, pressing plate side is convexly equipped with the limited block stopped by convex block, limited block lower surface is equal to the height of convex block to the distance of pressing plate lower surface, in this way after pipe fitting to be measured is placed on pedestal, by being flushed at the top of sliding indicator to its top surface and pipe fitting to be measured, and it is fixed by locking piece, subsequent need drive pressing plate to drop to and are limited block blocking, it is contacted at the top of the lower surface of pressing plate and pipe fitting to be measured at this time, consequently facilitating by pressing plate with it is to be tested Pipe fitting at the top of alignment, it is easy to operate and reduce pressing plate move down apart from inadequate or excessive situation.
Description
Technical field
The present invention relates to ring stiffness detection fields, more specifically, it relates to a kind of ring rigidity testing machine and its test side
Method.
Background technique
After the current various offline finished products of tubing, need to test properties, including hoop tensile strength, ring are rigid
Degree such as flattens at the test, successively detects whether pipe performance conforms to quality requirements, if the ring stiffness of tubing is not enough, tubing will
Excessive deformation or be collapsed, thus the tubing for bearing external pressure are generated, ring stiffness is most important performance indicator, root
According to national standard GB/9647-2003, the measurement of ring stiffness is that defined tubular product sample hangs down in two parallel-plate parts by defined condition
Vertical compression contracting, so that pipe diameter Direction distortion reaches 3%.
It is existing essentially by ring rigidity testing machine come to tubing carry out ring stiffness test, mainly include host computer and
Rack, the pressing plate slid vertically in rack and drives by driving mechanism, to pass through pressing plate after pipe fitting is placed in base-plates surface
Lower in-migration pushes pipe fitting and brings it about deformation, but usually requires that pressing plate is first driven to be displaced downwardly to its following table in specific operation process
Stop after being flushed at the top of face and pipe fitting, drives pressing plate to move down according still further to certain constant speed so that by being pressurized shape is occurred for pipe fitting
Become, in this process outrunner be difficult the good pressing plate of control move down accuracy, be easy to appear and move down distance not enough or mistake
The case where spending causes test operation more troublesome, requires further improvement.
Summary of the invention
In view of the deficiencies of the prior art, the present invention intends to provide a kind of ring rigidity testing machine, has and be convenient for
The advantages of by being aligned at the top of pressing plate and pipe fitting to be tested.
To achieve the above object, the present invention provides the following technical scheme that
A kind of ring rigidity testing machine, including host computer and rack, are provided with pedestal in the rack, vertical in the rack
Pressing plate is slidably connected, the driving mechanism for driving pressing plate to go up and down is provided in the rack, is provided with vertical pivot in the rack, institute
State the locking piece for slidably connecting on vertical pivot and being provided on indicator and indicator and limiting its sliding, projection at the top of the indicator
Have a convex block, the pressing plate side is convexly equipped with the limited block stopped by convex block, the limited block lower surface to pressing plate lower surface away from
From the height for being equal to convex block.
It is neat to its top surface and the top of pipe fitting to be measured by sliding indicator in this way after pipe fitting to be measured is placed on pedestal
Flat, and fix by locking piece, subsequent need drive pressing plate to drop to be stopped by convex block, at this time the lower surface of pressing plate with to
Contact at the top of test tube part unclamps locking piece and convex block is made no longer to stop pressing plate, then carries out pushing test, consequently facilitating by pressing plate with
Alignment at the top of pipe fitting to be tested, easy to operate and reduction pressing plate are moved down apart from inadequate or excessive situation.
The present invention is further arranged: the indicator is pointer, and the side of the pointer, which is provided with, to be socketed on vertical pivot
Ring body, the locking piece are to be threaded in ring body and one end passes through ring body and is connected to screw on vertical pivot.
Stable can slide and may be rotated on vertical pivot by ring body in this way, complete with to pressure pipe part at the top of
Pointer is gone into the other side after alignment, convex block would not stop pressing plate again at this time, can carry out follow-up test, next in progress
Pipe fitting goes back to pointer when testing, and only needs the height for initially adjusting pointer, subsequent nothing when testing the pipe fitting of same specification in this way
Continuous lift adjustment pointer is needed, so that test is more convenient.
The present invention is further arranged: positioning plate is symmetrically arranged on the pedestal, the positioning plate is slidably connected at pedestal
On.
Positioning action can be played to pipe fitting to be measured on the base is placed by the setting of positioning plate, and it is not susceptible to roll
Dynamic the case where falling, and pipe fitting can be made accurately to be located in the middle part of pedestal, it is aligned with pipe fitting top with pointer convenient for subsequent, after
Positioning plate is removed to the deformation for avoiding it from influencing pipe fitting again, while the positioning plate slided makes it possible to and is applicable in difference when continuous test
The pipe fitting of caliber specification is more practical.
The present invention is further arranged: being provided on the pedestal and positioning plate is driven to synchronize the actuator moved towards.
Positioning plate synchronizing moving can be driven in this way, it can be ensured that the mobile consistency of positioning plate, it can be preferably in base
Seat middle part positions pipe fitting, and positional accuracy is high.
The present invention is further arranged: the actuator includes the screw rod of rotation connection on the base, is arranged on the screw rod
There is the thread segment being threadedly coupled with positioning plate, the thread segment connecting respectively with two pieces of positioning plates is oppositely oriented.
The synchronizing moving of two positioning plates of realization in opposite directions or backwards can be synchronized by rotating screw rod, structure is simple and operates
It is convenient.
The present invention is further arranged: the opposite side of the positioning plate offers mounting hole, is provided in the mounting hole
Towards the blowing sprayer of base-plates surface.
Aeration cleaning can be carried out to base-plates surface by the setting of blowing sprayer, it is ensured that the clean and tidy degree of base-plates surface,
Avoiding particulate matter from falling on base station influences subsequent measurement test.
The present invention is further arranged: scale strip is provided on the vertical pivot, the starting point of the scale strip is base-plates surface.
By its diameter height that can rapidly slide into pipe fitting when sliding indicator is arranged in of scale strip, so that adjusting
Section operation more efficiency, and whether accurate, further increase the tune of indicator if can play further verifying scale strip position
Save accuracy.
The present invention is further arranged: the upper surface of the pointer and the lower surface of ring body are in same level.
May insure that ring body lower surface corresponds to the position that the data on scale strip are pointer upper surface in this way, when reading with
The position of ring body lower surface is read.
Another object of the present invention is to provide a kind of ring stiffness test methods, have and are convenient for pressing plate and pipe to be tested
At the top of part the advantages of alignment.
To realize the purpose, the present invention provides the following technical scheme that
A kind of ring stiffness test method, comprising the following steps:
Step 1: pipe fitting to be tested is placed in the middle part of pedestal；
Step 2: indicator being slided to along vertical pivot and flushes at the top of its upper surface and pipe fitting to be tested and is locked by locking piece；
Step 3: driving pressing plate to move down, until limited block is stopped by convex block；
Step 4: unclamping locking piece, indicator is turned to the other side or is displaced downwardly to convex block no longer stop limited block；
Step 5: driving pressing plate pushing pipe fitting to make its radial direction by constant speed, deformation occurs, and deformation quantity is that 0.03 times of pipe fitting is straight
Diameter, and obtain the load forces that pipe fitting at this time is subject to；
Step 6: calculating the ring stiffness of pipe fitting and recorded.
By the setting of indicator and limited block, stop after may be implemented to regulate the position of indicator by convex block block
Pressing plate moves down, consequently facilitating the alignment operation at the top of test pressing plate early period and pipe fitting to be tested, so that operation is more convenient
Fast, test efficiency is effectively improved.
In conclusion the invention has the following advantages:
The pipe fitting of placement can be positioned by the positioning plate that synchronizing moving is arranged on base station first, it is ensured that pipe fitting was placed
Position can be positioned exactly in the middle part of pedestal, and before test when adjusting press plate position, can be by the indicator regulated in advance
On convex block the pressing plate moved down is stopped, avoid adjust pressing plate when occur moving down apart from inadequate or excessive situation, make
The adjusting for obtaining pressing plate is more convenient, to effectively improve test efficiency.
Detailed description of the invention
Fig. 1 is the overall structure figure of the present embodiment；
Fig. 2 is the side view of pedestal in the present embodiment.
Appended drawing reference: 1, rack；2, pedestal；3, pressing plate；4, vertical pivot；5, pointer；6, ring body；7, screw；8, convex block；9, it limits
Position block；10, scale strip；11, positioning plate；12, screw rod；13, sliding slot；14, mounting table；15, axis hole；16, holding rod；17, screw thread
Section；18, mounting hole；19, blowing sprayer.
Specific embodiment
Below in conjunction with attached drawing, invention is further described in detail.
A kind of ring rigidity testing machine, as shown in Figure 1, including rack 1 and host computer (not shown), in rack 1
Bottom be provided with the pedestal 2 for placing pipe fitting to be measured, while being slid vertically in rack 1 and being connected with pressing plate 3, in rack 1
It is provided with the driving mechanism that driving pressing plate 3 is gone up and down, which includes motor and screw rod (showing in figure), passes through screw rod
The principle of transmission realizes the lifting of pressing plate 3, while vertical pivot 4 is vertically provided in rack 1, and finger is slidably connected on vertical pivot 4
Show part, indicator includes pointer 5 and the ring body being socketed on vertical pivot 46, and the restricted lock that it is slided is arranged in ring body 6
Determine part, which includes the screw 7 being threaded in ring body 6, the locking realized for indicator is pushed against by screw 7,
In addition it is fixed with convex convex block 8 in the top surface of pointer 5, and is convexly equipped with the limited block 9 stopped by convex block 8 in the side of pressing plate 3,
The limited block 9 and pressing plate 3 are fixed, and 9 lower surface of limited block is equal to the height of convex block 8 to the vertical distance of 3 lower surface of pressing plate, into
And can adjust in advance indicator to flushed at the top of pipe fitting, then drive pressing plate 3 to move down and contacted with the top of pipe fitting when being aligned,
Only pressing plate 3 need to constantly be driven to move down until being stopped by convex block 8, be connect at the top of 3 surface of pressing plate and pipe fitting when being stopped by convex block 8
Touching alignment, in this way it is possible to prevente effectively from pressing plate 3 moves down and occurs moving down when adjusting apart from excessive or inadequate situation, convenient for pressing plate
3 are bonded the operation being aligned with pipe fitting, and so as to effectively improve the efficiency of test, subsequent crush board 3 is moved down again by certain speed
When being tested, it need to only unclamp and pointer 5 is gone into the other side after screw 7, convex block 8 no longer stops the continuation of pressing plate 3 at this time
It moves down, goes back to come again when needing, since the height of indicator may be implemented to adjust, and then various different pipes can be suitable for
The pipe fitting of diameter is tested, more for practicability.
It is vertically provided with scale strip 10 in vertical pivot 4, the starting point of scale strip 10 is 2 surface of pedestal, is referred in this way in sliding
Its diameter height that can rapidly slide into pipe fitting when showing part so that adjusting operation more efficiency, and can be played into one
Whether step card 10 position of scale strip is accurate, further increases the accommodation accuracy of indicator, and the lower surface of ring body 6 and pointer
5 upper surface is in same level, and may insure that 6 lower surface of ring body corresponds to the data on scale strip 10 in this way is pointer 5
The position of upper surface, when reading, are read with the position of 6 lower surface of ring body.
As depicted in figs. 1 and 2, it is provided with the positioning plate 11 of horizontal sliding on the base 2, which is symmetrically arranged with
Two, while being provided with that two pieces of positioning plates 11 of driving are opposite or actuator backwards to synchronizing moving, actuator include on the base 2
It is rotatablely connected screw rod 12 on the base 2, the sliding slot 13 slided for positioning plate 11 is offered on pedestal 2, sliding slot 13 is symmetrical arranged
And mounting table 14 for preventing pipe fitting is formed therebetween, while the axis hole 15 installed for screw rod 12 is offered on pedestal 2,
12 one end of screw rod is connected to 15 bottom of axis hole, and the other end is pierced by 2 formation operation end of pedestal, and holding rod is fixed on operating side
16, such screw rod 12 is axial to be moved can only realize and circumferentially rotate, and screw rod 12 passes through two positioning plates 11, and sets on screw rod 12
It is equipped with the thread segment 17 being threadedly coupled with positioning plate 11, the thread segment 17 being threadedly coupled with two positioning plates 11 is oppositely oriented, from
And by rotate screw rod 12 may be implemented it is synchronous drive two positioning plates 11 in the same direction or reverse movement, the setting of positioning plate 11 can be with
Positioning action is played to pipe fitting to be measured on the base 2 is placed, and it is not susceptible to roll the case where falling, and can make pipe fitting
Accurately it is located at the middle part of pedestal 2, is aligned with pipe fitting top with pointer 5 convenient for subsequent, when follow-up test again removes positioning plate 11
It is avoided to influence the deformation of pipe fitting, while the positioning plate 11 slided makes it possible to the pipe fitting for being applicable in different tube diameters specification.
It is offered in mounting hole 18 in the opposite side surface of positioning plate 11, is provided with blowing sprayer in mounting hole 18
19, which is arranged towards 14 direction of mounting table, can carry out aeration cleaning to 14 surface of mounting table in this way, it is ensured that
The clean and tidy degree on 2 surface of pedestal, avoiding particulate matter from falling on mounting table 14 influences subsequent measurement test.
Pipe fitting to be measured: being placed on mounting table 14 by specific test process first, makes two sides fixed by rotating screw rod 12
Position plate 11, which synchronizes to move towards, to be abutted with pipe fitting and does not squeeze, and realizes the positioning for pipe fitting, is then unclamped screw 7 and is adjusted pointer
5 height, which to flush at the top of the upper surface of pointer 5 and pipe fitting, to be aligned, and tightening screw 7 is locked, and pressing plate 3 is then driven
It is displaced downwardly to it to be stopped by convex block 8, the surface of pressing plate 3 contacts with the roof of pipe fitting and do not squeeze, and unclamps again screw 7 for pointer 5
It turns to the other side and locks, rotate backward screw rod 12 and the positioning plate 11 of two sides is moved backward, then crush board 3 presses perseverance again
Constant speed degree move down push pipe fitting make its it is radial deformation occurs, deformation quantity is 0.03 times of pipe fitting diameter, and obtain at this time pipe fitting by
The load forces arrived calculate the ring stiffness of pipe fitting finally by formula and are recorded, and so circulation is realized rigid for pipe fitting ring
The detection of degree is tested.
This specific embodiment is only explanation of the invention, is not limitation of the present invention, those skilled in the art
Member can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but as long as at this
All by the protection of Patent Law in the scope of the claims of invention.
Claims (9)
1. a kind of ring rigidity testing machine, including host computer and rack (1), pedestal (2), institute are provided on the rack (1)
It states to slide vertically on rack (1) and be connected with pressing plate (3), the driving machine for driving pressing plate (3) to go up and down is provided on the rack (1)
Structure slidably connects indicator and indicator on the vertical pivot (4) it is characterized in that: being provided with vertical pivot (4) in the rack (1)
On be provided with the locking piece for limiting its sliding, be convexly equipped with convex block (8) at the top of the indicator, pressing plate (3) side is convexly equipped with
The distance of the limited block (9) stopped by convex block (8), limited block (9) lower surface to pressing plate (3) lower surface is equal to convex block (8)
Height.
2. ring rigidity testing machine according to claim 1, it is characterized in that: the indicator is pointer (5), the pointer
(5) side is provided with the ring body (6) being socketed on vertical pivot (4), and the locking piece is to be threaded on ring body (6) and one end
The screw (7) being connected to across ring body (6) on vertical pivot (4).
3. ring rigidity testing machine according to claim 1, it is characterized in that: being symmetrically arranged with positioning plate on the pedestal (2)
(11), the positioning plate (11) is slidably connected on pedestal (2).
4. ring rigidity testing machine according to claim 3 drives positioning plate it is characterized in that: being provided on the pedestal (2)
(11) actuator moved towards is synchronized.
5. ring rigidity testing machine according to claim 4, it is characterized in that: the actuator includes being rotatably connected on pedestal
(2) screw rod (12) on is provided with the thread segment (17) being threadedly coupled with positioning plate (11) on the screw rod (12), respectively with two
The thread segment (17) of block positioning plate (11) connection is oppositely oriented.
6. ring rigidity testing machine according to claim 3, it is characterized in that: the opposite side of the positioning plate (11) offers
Mounting hole (18), the interior blowing sprayer (19) being provided with towards pedestal (2) surface of the mounting hole (18).
7. ring rigidity testing machine according to claim 2, it is characterized in that: scale strip (10) are provided on the vertical pivot (4),
The starting point of the scale strip (10) is pedestal (2) surface.
8. ring rigidity testing machine according to claim 7, it is characterized in that: the upper surface of the pointer (5) and ring body (6)
Lower surface is in same level.
9. a kind of ring stiffness test method, which comprises the following steps:
Step 1: pipe fitting to be tested is placed in the middle part of pedestal (2)；
Step 2: indicator being slided to along vertical pivot (4) and flushes at the top of its upper surface and pipe fitting to be tested and is locked by locking piece
It is fixed；
Step 3: driving pressing plate (3) to move down, until limited block (9) are stopped by convex block (8)；
Step 4: unclamping locking piece, indicator is turned into the other side or is displaced downwardly to convex block (8) no longer stop limited block (9)；
Step 5: driving pressing plate (3) to push pipe fitting by constant speed makes its radial pipe fitting that deformation occurs, and deformation quantity is 0.03 times
Diameter, and obtain the load forces that pipe fitting at this time is subject to；
Step 6: calculating the ring stiffness of pipe fitting and recorded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811583705.5A CN109580140A (en) | 2018-12-24 | 2018-12-24 | A kind of ring rigidity testing machine and its test method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811583705.5A CN109580140A (en) | 2018-12-24 | 2018-12-24 | A kind of ring rigidity testing machine and its test method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109580140A true CN109580140A (en) | 2019-04-05 |
Family
ID=65930988
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811583705.5A Pending CN109580140A (en) | 2018-12-24 | 2018-12-24 | A kind of ring rigidity testing machine and its test method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109580140A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114216778A (en) * | 2021-12-24 | 2022-03-22 | 国网浙江省电力有限公司双创中心 | Ring stiffness test equipment |
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| CN108776063A (en) * | 2018-08-21 | 2018-11-09 | 普雷沃流体控制科技（芜湖）有限公司 | A kind of valve rigidity compression tester |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2879167Y (en) * | 2006-01-24 | 2007-03-14 | 深圳市新三思材料检测有限公司 | Ring rigidity testing machine |
| CN102735543A (en) * | 2012-06-18 | 2012-10-17 | 江苏明珠试验机械有限公司 | Testing machine for comprehensive properties of tensile strength, ring stiffness and flattening performance of tubes |
| CN202631244U (en) * | 2012-06-20 | 2012-12-26 | 天津百利展发集团有限公司 | Specific pressure numerical value tester for packing seal of valve |
| CN204495656U (en) * | 2015-02-02 | 2015-07-22 | 青岛同科橡塑科技有限公司 | A kind of ring rigidity testing machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114216778A (en) * | 2021-12-24 | 2022-03-22 | 国网浙江省电力有限公司双创中心 | Ring stiffness test equipment |
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Application publication date: 20190405 |
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| RJ01 | Rejection of invention patent application after publication |